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(Nd Model.)

L. J. ATWOOD.

WIOK TUBE FOR LAMPS AND LAMP STOVES.

No. 357,545. v Patented Feb. 8, 1887.

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UNITED STATE PATENT ()rr cnzg LEWIS J. ATWOOD, OF WATERBURY, CONNECTICUT, ASSIGNOR TO THE PLUME & ATVVOOD MANUFACTURING COMPANY, OF SAME PLACE.

WICIK-TUBE FOR LAMPS AND LAMP-=STOVES.

SIECIPICA'IION forming part of Letters Patent No.35'7,545, dated February 8, 1887.

Application filed January l2, 1882. Serial No. 49,937. (No model.)

To aZZ whom it may concern.-

Be it'known that I, LEWIS J. ATWOOD, of Waterbury, in the county of New Haven and State of Connecticut, have invented an Improvement in WicleTubes for Kerosene Stoves andLamps, of which the following is a specification.

My invention is for maintaining the wicktube complete, with only the small openings for the wick-raisers,'for stiffening the wicktube, for preventing wear at the bearings for the wick-raising shaft, and for excluding air from the housing or ratchet -case, and for strengthening the wick-tube and lessening the cost of its construction.

In the drawings, Figure l is a vertical section of the wicktube and case. Fig. 2 is a horizontal section at the line a: a2, and Fig. 3 is anelevation.

. The wick-tube a is made of sheet metal, with the edges folded back to form flanges 2 2, and

a clamping-strip, I), slipped endwise over the der.

In one side of the wick-tube there are slots for the wick-raising wheels d, and there may be three or more such wheels. I have repre sented five of these wheels at upon the shaft 6, and at the outer end of such shaft there is the thumb-wheel j, that is made of sheet metal, with the edge returned in a cylindrical form, so as to give a sufficient surface to prevent injury to the fingers in turning'the wiclcraisers and raising or lowering the broad wick that is employed in this burner.

I employ a separate housing or case, 0, having rounded ends, so as to be stamped up out of one piece of metal, and its flanges 0 are riveted, interlocked, or soldered to the side of the wick-tube, such case being of a size to contain the wick-raising wheels. I also provide the necessary openings in the case for the shaft 6 to pass through, and I introduce a separate tubular bearing, t, at one end of the case and a separate closed tubular cap, Z, at

the other end of the case. These are soldered or otherwise secured in place. These tubular bearings form an extended surface for the shaft and prevent the metalwearing away and the shaft becoming loose, as has heretofore been the case, and air is excluded from the wickraiser case, and there is no risk of the wick catching fire within the case or of oil passing out at the journals and catching fire. tubular bearings are available with any ordinary wick-raiser shaft and with a housing made in one piece with the wick-tube. The end of the wick-tube is stiffened by turning over the sheet metal to form a fold, as at n, and numerous small transverse corrugations are stamped in the metal to stiffen the same, and thereby allow for. the use of thin metal, that will not conduct the heat down the wicktnbe as rapidly as would be the case with thicker metal. a

I am aware that a cover for the wiek-raisers has been made of a separate piece fastened upon the wick-tube; also,that the bearings for the shaft of the wick-raiser have in some in stances been segments of cylinders pressed up in the metal of the cover, and in some instances such shaft has passed through a stuffing-box upon the body of the burner. In some instances thebearing for the shaft has been made of a spring with the end bent up into a cylindrical form. Circular and flat wick-tubes have been united by a hollow strip slipped over returned flanges; but where these are applied the flame is liable to be uneven in consequence of the projection interfering with the draft. I use such strip at the edge of the wick, where it stiifens the tube and does not interfere with the draft, I

I claim as my invention The combination, with the wick-tube having a housing at one side, of the wick-raisers within such housing, the shaft for the same, and separate tubular bearings for the wick raiser shaft introduced through the metal of the housing and secured, substantially as specified.

Signed by me this 2d day of January, A. D.

. LEWIS J. ATWOOD. Witnesses:

W. S. ATWOOD, Rom. T. LATTIN.

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